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ÅÓÊÚáÇã-SQL: 

ALTER TABLE `forum` ADD `banner` VARCHAR( 50 ) NOT NULL 

MySQL ÞÇá:  

#1060 - Duplicate column name 'banner'

Database error in vBulletin 3.6.4:

Invalid SQL:
UPDATE forum SET
	title_clean = 'ãäÊÏì ÎÇÕ',
	title = 'ãäÊÏì ÎÇÕ',
	description_clean = '',
	description = '',
	link = '',
	displayorder = 1,
	parentid = 48,
	daysprune = -1,
	defaultsortfield = 'lastpost',
	defaultsortorder = 'desc',
	showprivate = 0,
	newpostemail = '',
	newthreademail = '',
	### Bitfield: forum.options ###
		options = IF(options & 8, options - 8, options),
		options = IF(options & 16, options - 16, options),
		options = IF(options & 32, options - 32, options),
		options = IF(options & 32768, options - 32768, options),
		options = IF(options & 8192, options, options + 8192),
		options = IF(options & 4, options, options + 4),
		options = IF(options & 1, options, options + 1),
		options = IF(options & 2, options, options + 2),
		options = IF(options & 16384, options, options + 16384),
		options = IF(options & 256, options - 256, options),
		options = IF(options & 64, options, options + 64),
		options = IF(options & 128, options, options + 128),
		options = IF(options & 512, options, options + 512),
		options = IF(options & 1024, options, options + 1024),
		options = IF(options & 2048, options, options + 2048),
		options = IF(options & 4096, options, options + 4096),
		options = IF(options & 65536, options, options + 65536),
	styleid = 0,
	password = '',
	banner = '',
	bannerlink = '',
	banneralt = ''
WHERE forumid = 32;

MySQL Error  : Unknown column 'bannerlink' in 'field list'
Error Number : 1054
Date         : Friday, March 16th 2007 @ 03:17:27 AM
Script       : http://www.******.org/vb/control/forum.php?do=update
Referrer     : http://www.******.org/vb/control/forum.php?do=edit&f=32&s=
IP Address   : 111.14.115.132
Username     : admin
Classname    : vb_database